etl/test/test_lookup.cpp

/******************************************************************************
The MIT License(MIT)

Embedded Template Library.

Copyright(c) 2014 jwellbelove

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******************************************************************************/

#include <UnitTest++/UnitTest++.h>

#include <map>
#include <array>
#include <algorithm>
#include <utility>
#include <iterator>
#include <string>
#include <vector>

#include "../lookup.h"

namespace
{
  SUITE(test_lookup)
  {
    static const size_t SIZE = 10;

    typedef etl::lookup<std::string, int, SIZE>  Data;
    typedef std::map<std::string, int>           Compare_Data;

    std::vector<Data::value_type> initial_data;
    std::vector<Data::value_type> excess_data;
    std::vector<Data::value_type> different_data;

    //*************************************************************************
    template <typename T1, typename T2>
    bool Check_Equal(T1 begin1, T1 end1, T2 begin2)
    {
      while (begin1 != end1)
      {
        if ((begin1->first != begin2->first) || (begin1->second != begin2->second))
        {
          return false;
        }

        ++begin1;
        ++begin2;
      }

      return true;
    }

    //*************************************************************************
    struct SetupFixture
    {
      SetupFixture()
      {
        Data::value_type n[] =
        {
          { std::string("0"), 0 },
          { std::string("1"), 1 },
          { std::string("2"), 2 },
          { std::string("3"), 3 },
          { std::string("4"), 4 },
          { std::string("5"), 5 },
          { std::string("6"), 6 },
          { std::string("7"), 7 },
          { std::string("8"), 8 },
          { std::string("9"), 9 },
        };

        Data::value_type n2[] =
        {
          { std::string("0"),   0 },
          { std::string("1"),   1 },
          { std::string("2"),   2 },
          { std::string("3"),   3 },
          { std::string("4"),   4 },
          { std::string("5"),   5 },
          { std::string("6"),   6 },
          { std::string("7"),   7 },
          { std::string("8"),   8 },
          { std::string("9"),   9 },
          { std::string("10"), 10 },
        };

        Data::value_type n3[] =
        {
          { std::string("10"), 10 },
          { std::string("11"), 11 },
          { std::string("12"), 12 },
          { std::string("13"), 13 },
          { std::string("14"), 14 },
          { std::string("15"), 15 },
          { std::string("16"), 16 },
          { std::string("17"), 17 },
          { std::string("18"), 18 },
          { std::string("19"), 19 },
        };

        initial_data.assign(std::begin(n), std::end(n));
        excess_data.assign(std::begin(n2), std::end(n2));
        different_data.assign(std::begin(n3), std::end(n3));
      }
    };

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_default_constructor)
    {
      Data data;

      CHECK_EQUAL(data.size(), size_t(0));
      CHECK(data.empty());
      CHECK_EQUAL(data.capacity(), SIZE);
      CHECK_EQUAL(data.max_size(), SIZE);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_constructor_range)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());

      Data data(compare_data.begin(), compare_data.end());

      CHECK(data.size() == SIZE);
      CHECK(!data.empty());
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_assignment)
    {
      Data data(initial_data.begin(), initial_data.end());
      Data otherData;

      otherData = data;

      bool isEqual = Check_Equal(data.begin(),
                                 data.end(),
                                 otherData.begin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_begin)
    {
      Data data(initial_data.begin(), initial_data.end());
      const Data constData(data);

      CHECK_EQUAL(data.begin(), std::begin(data));
      CHECK_EQUAL(constData.begin(), std::begin(constData));
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_end)
    {
      Data data(initial_data.begin(), initial_data.end());
      const Data constData(data);

      CHECK_EQUAL(data.end(), std::end(data));
      CHECK_EQUAL(constData.end(), std::end(constData));
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_empty)
    {
      Data data;
      data.insert(initial_data.begin(), initial_data.end());

      CHECK(data.full());
      CHECK(!data.empty());
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_full)
    {
      Data data;

      CHECK(!data.full());
      CHECK(data.empty());
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_index)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());

      Data data(compare_data.begin(), compare_data.end());

      CHECK_EQUAL(data["0"], compare_data["0"]);
      CHECK_EQUAL(data["1"], compare_data["1"]);
      CHECK_EQUAL(data["2"], compare_data["2"]);
      CHECK_EQUAL(data["3"], compare_data["3"]);
      CHECK_EQUAL(data["4"], compare_data["4"]);
      CHECK_EQUAL(data["5"], compare_data["5"]);
      CHECK_EQUAL(data["6"], compare_data["6"]);
      CHECK_EQUAL(data["7"], compare_data["7"]);
      CHECK_EQUAL(data["8"], compare_data["8"]);
      CHECK_EQUAL(data["9"], compare_data["9"]);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_at)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());
      Data data(initial_data.begin(), initial_data.end());

      CHECK_EQUAL(data.at("0"), compare_data.at("0"));
      CHECK_EQUAL(data.at("1"), compare_data.at("1"));
      CHECK_EQUAL(data.at("2"), compare_data.at("2"));
      CHECK_EQUAL(data.at("3"), compare_data.at("3"));
      CHECK_EQUAL(data.at("4"), compare_data.at("4"));
      CHECK_EQUAL(data.at("5"), compare_data.at("5"));
      CHECK_EQUAL(data.at("6"), compare_data.at("6"));
      CHECK_EQUAL(data.at("7"), compare_data.at("7"));
      CHECK_EQUAL(data.at("8"), compare_data.at("8"));
      CHECK_EQUAL(data.at("9"), compare_data.at("9"));
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_at_const)
    {
      const Compare_Data compare_data(initial_data.begin(), initial_data.end());
      const Data data(initial_data.begin(), initial_data.end());

      CHECK_EQUAL(data.at("0"), compare_data.at("0"));
      CHECK_EQUAL(data.at("1"), compare_data.at("1"));
      CHECK_EQUAL(data.at("2"), compare_data.at("2"));
      CHECK_EQUAL(data.at("3"), compare_data.at("3"));
      CHECK_EQUAL(data.at("4"), compare_data.at("4"));
      CHECK_EQUAL(data.at("5"), compare_data.at("5"));
      CHECK_EQUAL(data.at("6"), compare_data.at("6"));
      CHECK_EQUAL(data.at("7"), compare_data.at("7"));
      CHECK_EQUAL(data.at("8"), compare_data.at("8"));
      CHECK_EQUAL(data.at("9"), compare_data.at("9"));
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_assign_range)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());

      Data data;

      data.assign(compare_data.begin(), compare_data.end());

      bool isEqual = Check_Equal(data.begin(),
                                 data.end(),
                                 compare_data.begin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_insert_value)
    {
      Compare_Data compare_data;
      Data data;

      data.insert(Data::value_type(std::string("0"), 0));
      compare_data.insert(std::make_pair(std::string("0"), 0));

      bool isEqual = Check_Equal(data.begin(),
                                 data.end(),
                                 compare_data.begin());

      CHECK(isEqual);

      data.insert(std::make_pair(std::string("2"), 2));
      compare_data.insert(std::make_pair(std::string("2"), 2));

      isEqual = Check_Equal(data.begin(),
                            data.end(),
                            compare_data.begin());

      CHECK(isEqual);

      data.insert(std::make_pair(std::string("1"), 1));
      compare_data.insert(std::make_pair(std::string("1"), 1));

      isEqual = Check_Equal(data.begin(),
                            data.end(),
                            compare_data.begin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_insert_value_excess)
    {
      Data data(initial_data.begin(), initial_data.end());

      CHECK_THROW(data.insert(std::make_pair(std::string("10"), 10)), etl::lookup_full);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_insert_range)
    {
      Compare_Data compare_data;
      Data data;

      data.insert(initial_data.begin(), initial_data.end());
      compare_data.insert(initial_data.begin(), initial_data.end());

      bool isEqual = Check_Equal(data.begin(),
                                 data.end(),
                                 compare_data.begin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_insert_range_excess)
    {
      Data data;

      CHECK_THROW(data.insert(excess_data.begin(), excess_data.end()), etl::lookup_full);
    }


    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_erase_single)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());
      Data data(initial_data.begin(), initial_data.end());

      Compare_Data::iterator i_compare = compare_data.begin();
      Data::iterator i_data            = data.begin();

      std::advance(i_compare, 2);
      std::advance(i_data,    2);

      compare_data.erase(i_compare);
      data.erase(i_data);

      bool isEqual = Check_Equal(data.begin(),
                                 data.end(),
                                 compare_data.begin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_erase_range)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());
      Data data(initial_data.begin(), initial_data.end());

      Compare_Data::iterator i_compare = compare_data.begin();
      Data::iterator i_data            = data.begin();

      Compare_Data::iterator i_compare_end = compare_data.begin();
      Data::iterator i_data_end            = data.begin();

      std::advance(i_compare, 2);
      std::advance(i_data,    2);

      std::advance(i_compare_end, 4);
      std::advance(i_data_end,    4);

      compare_data.erase(i_compare, i_compare_end);
      data.erase(i_data, i_data_end);

      bool isEqual = Check_Equal(data.begin(),
                                 data.end(),
                                 compare_data.begin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_clear)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());

      Data data(compare_data.begin(), compare_data.end());
      data.clear();

      CHECK_EQUAL(data.size(), size_t(0));
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_iterator)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());

      Data data(compare_data.begin(), compare_data.end());

      bool isEqual = Check_Equal(data.begin(),
                                 data.end(),
                                 compare_data.begin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_const_iterator)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());

      Data data(compare_data.begin(), compare_data.end());

      bool isEqual = Check_Equal(data.cbegin(),
                                 data.cend(),
                                 compare_data.cbegin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_reverse_iterator)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());

      Data data(compare_data.begin(), compare_data.end());

      bool isEqual = Check_Equal(data.rbegin(),
                                 data.rend(),
                                 compare_data.rbegin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_const_reverse_iterator)
    {
      Compare_Data compare_data(initial_data.begin(), initial_data.end());

      Data data(compare_data.begin(), compare_data.end());

      bool isEqual = Check_Equal(data.crbegin(),
                                 data.crend(),
                                 compare_data.crbegin());

      CHECK(isEqual);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_find)
    {
      Data data(initial_data.begin(), initial_data.end());

      Data::iterator it = data.find("3");
      CHECK_EQUAL(3, it->second);

      it = data.find("A");
      CHECK_EQUAL(data.end(), it);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_find_const)
    {
      const Data data(initial_data.begin(), initial_data.end());

      Data::const_iterator it = data.find("3");
      CHECK_EQUAL(3, it->second);

      it = data.find("A");
      CHECK_EQUAL(data.end(), it);
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_equal)
    {
      const Data initial1(initial_data.begin(), initial_data.end());
      const Data initial2(initial_data.begin(), initial_data.end());

      CHECK(initial1 == initial2);

      const Data different(different_data.begin(), different_data.end());

      CHECK(!(initial1 == different));
    }

    //*************************************************************************
    TEST_FIXTURE(SetupFixture, test_not_equal)
    {
      const Data initial1(initial_data.begin(), initial_data.end());
      const Data initial2(initial_data.begin(), initial_data.end());

      CHECK(!(initial1 != initial2));

      const Data different(different_data.begin(), different_data.end());

      CHECK(initial1 != different);
    }

    //*************************************************************************
    TEST(test_swap)
    {
      Compare_Data first(initial_data.begin(), initial_data.end());
      Compare_Data second(initial_data.rbegin(), initial_data.rend());

      Data data1(first.begin(), first.end());
      Data data2(second.begin(), second.end());

      swap(data1, data2);

      CHECK_EQUAL(second.size(), data1.size());
      CHECK_EQUAL(first.size(), data2.size());

      CHECK_EQUAL(std::distance(second.begin(), second.end()), std::distance(data1.begin(), data1.end()));
      CHECK_EQUAL(std::distance(first.begin(), first.end()), std::distance(data2.begin(), data2.end()));

      CHECK(Check_Equal(data1.begin(), data1.end(), second.begin()));
      CHECK(Check_Equal(data2.begin(), data2.end(), first.begin()));
    }
  };
}